GC/MS Evaluation of Compounds in Dry and Conditioned Striga Species Seeds

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• 作者：Joseph K. Rugutt ; John K. Rugutt ; Rostem J. Irani ; Nikolaus H. Fischer ; Dana K. Berner ; and Tracy D. McCarley
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：1996
• 出版时间：December 1996
• 年：1996
• 卷：44
• 期：12
• 页码：3977 - 3982
• 全文大小：109K
• 年卷期：v.44,no.12(December 1996)
• ISSN：1520-5118

文摘

We have analyzed the dichloromethane(CH₂Cl₂) extracts of seeds of dry andconditioned Strigahermonthica (Del.) Benth., S. aspera (Willd.) Benth.,and S. gesnerioides (Willd.) Vatke by meansof gas chromatography (GC) coupled to mass spectrometry (MS).Sixteen compounds were identifiedon the basis of their mass spectra and their retention indices.All Striga spp. extracts containedtetradecanoic acid, cis,cis-9,12-octadecadienoicacid, cis-9-octadecenoic acid, and sitosterol.Also,2,6-dimethoxy-p-benzoquinone (2,6-DMBQ) and several longchain aldehydes and n-hydrocarbonswere detected in some of the extracts. The nature of the chemicalchanges induced by seedconditioning is discussed.Keywords: Striga aspera; S. hermonthica; S.gesnerioides; Scrophulariaceae; seed chemicalconstituents; CH₂Cl₂; GC/MS